| 毛白杨近红外光谱数据建立综纤维素含量数学模型 |
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| 引用本文： | 朱丽,张文杰,刘胜.毛白杨近红外光谱数据建立综纤维素含量数学模型[J].现代农业科技,2011(8):15-16,20. |
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| 作者姓名： | 朱丽 张文杰 刘胜 |
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| 作者单位： | 北京林业大学,北京,100083 |
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| 基金项目： | 国家"十一五"科技支撑计划"速生纸浆材特性数据库及浆纸性能预测模型的研究与开发" |
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| 摘 要： | 建立一种基于朗伯—比尔(Lambert-Beer)定律可预测毛白杨杂交子代综纤维素含量的数学模型,即先对近红外光谱数据预处理,并将光谱数据按波长进行分组,建立众多非线性子数学模型,最后通过加权平均值公式给出综纤维素含量的预测模型。其预测值之间的相关系数r=0.945 5,平均相对误差为0.006 0,模型的拟合优度R2=0.894 0。此模型可作为一种预测毛白杨综纤维素含量的方法,也有益于今后纸浆性能预测。
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| 关 键 词： | 毛白杨 综纤维素含量 数学模型 近红外光谱 |
Establishment of Holocellulose Content Mathmatical Model in Populus tomentosa by Near Infrared Spectral Data |
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| Authors: | ZHU Li ZHANG Wen-jie LIU Sheng |
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| Institution: | ZHU Li ZHANG Wen-jie * LIU Sheng(Beijing Forestry University,Beijing 100083) |
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| Abstract: | In this paper,the theoretical model of predicting Populus tomentosa-holocellulose contents was established basing on Lambert-Beer law.The first step of modeling method was to take pretreatments on near infrared spectral data,which could be divided into many groups according to the wavelength,then built up 50 groups nonlinear mathematical model,finally the holocellulose contents ensemble prediction model was given by the weighted average formula.The correlation coefficient r=0.945 5,the average relative erro... |
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| Keywords: | Populus tomentosa holocellulose content mathmatical model near infrared spectrum |
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